Valve.



R. R. MILLER.

VALVE. APPLICATION FILED SEPT. 20,1912.

1,086,549. Patented Feb. 10, 1914.

wza 19 I v v 16 12 6 W a; fiwzzntorla a-Jamaaj rm UNITED STATES PATENTOFFICE.

RICHARD R. MILLER, 01? CFIICAGO, ILLINOIS.

I Specification of Letters Patent.

Patented Feb. 19, 1914.

Application filed September 1912. Serial No. 721,497.

'provement in Valves, of which the following is a specification.

The object of my invention is to provide a valve for fluids, airandgases, more simply and cheaply made, with freer passage ways, and abetter seat, than valves of alike kind npw in use; the particularfeatures of which are pointed out in the following specification, andillustrated in the accompanying drawings in which Figure 1, is a plan ofthe valve complete. Fig. 2, is an elevation, part being in section. Fig.3, is a plan of the top member. Fig. 4, is an elevation of the partshown in Fig. 3. Fig. 5, is a plan of the seat broken oif at the centerline. Fig. 6, is a sectional clevation of'the seat.

In the drawing 7 indicates the cylindrical base of the valve,externally, threaded for attachment to the structure for which it isrequired. Above this threaded part is a projecting-flange 8'wh1chextends inwardly to a reduced part 9 of the base which is also Abovethis threaded of the removable valve seat, which is in;

-wardly supported by the vertical elevation 11. Supported on the table10, and by the elevation 11, is a seat 12, which is secured thereon bythe top member 13;, This top member isinternally threaded at 14V wherebyit is screwed onto the part 9, of th base 7, as shown in Fig. 2. Thebottom of this top member adapted to form a light joint with the'flange8 and the internal face 15 above th'e threaded portion ll. forms aninwardly inclined angle which is adapted to correspond with the angle16, of the seat 12,

whereby the seat is securely locked in. position in the valve. Threer1bs-17extend verj tically andthen inwardly froi'n'tbe part 14 and areconnected by rings 18, and 19, all

of which constitute one integral part. The ring-19. is cylindrical. Itextends above and below the junction of the ribs, and forms acylinderQO. The'external portion of the top is six s ded whereby themember is screwed on tothe base by means of a wrench. *blidablysupportednrtbc cylinder 2( is a'stem 21 of the puppet valve 2:2;v which isadapted to rest on the seat 12, under the pressure of a coiled spring23, which is adapted to encircle the lower portion of the cylinder 20.\Vithin the base 7 are two lugs 24 shown in Fig. 1 which-are adapted tohe engaged by a suitable tool for screwing the base into the structuredesired.

'Ilhe seat 12 is preferably of elastic materia VVhilo the base is shownas an attachable member it is obvious that it may form an in:

tegral part of a structure such as a boiler,

i What I'claim is:-

1. A valve of the kind described consisting of a base, said base havingan externally threaded portion adapted to support a top member, a tableabove said threaded portion and a vertical wall, said'table and wallbeing adapted for the support of a remov- .able seat; a-'seat having abase adapted to rest on said table, an internal periphery adapted to besupported by said wall and an external periphery inclined from said baseupward and inward and thereby adapt.- ed to be engaged and held on saidtable and against said wall by a top member; a top member composed of aplurality of rings joined by a plurality of ribs, one of said ringsbeing internally threaded and having an inwardly inclined peripheryabove said threaded part, whereby said member is adapted to be screwedon to the threaded portion of said base and to engage the inclinedperiphery of said seat and thereby lock said seat on said base, theupper ring of said top member being extended vertically and forming avertical central cylinder; a

puppet valve having a flange-adapted to rest on said seat and a stemslidably'supported in said cylinder; and a coiled spring encircling saidcylinder and stem and compressed between the flange of said puppet valveand top ring of said top member as described.

' 2, In a device of the kind described the combination with a mainmember having an externally threaded portion for the support of atopmember, a table extending inward 'from saidthrcaded part, and awallforming the inward limit of said table, said wall being adapted tosupport a scat-of aseat in the form of a ring adapted to be reinovablyplaced on said table and supported by. iiid' wall: a. top member havingan intcrnally threaded and an inclined face above said her and on to theseatsaid top member haw ing a cylindrieal the stem of a puppet valve anda coiled spring; a puppet valve having a stem sup ported in saidcylindrical center of said top, and a head adapted to cover and rest onsaid seat, and a coiled spring sompressed center ada'pied t0 supportWithin said top member on said valve 2;;

esc'szbed v RICHARD LR JILLER. \Vitnesses:

THOMAS J, B/IORGAH.

I i i 5 i i I JULIUS RUBINMEJ 1;;

